Homework Help: Statistics

Posted by Jacob on Tuesday, June 15, 2010 at 5:05pm.

You draw two cards from a standard deck of 52 cards and replace the first one before drawing the second. Find the probability of drawing a 4 for the first card and a 9 for the second card. Round your answer to the nearest thousandth.

0.006
0.039
0.019
0.155
0.026

which wwould it be

Statistics - Reiny, Tuesday, June 15, 2010 at 5:18pm
since you are replacing the card, the second prob is the same as the first
prob(4, then 9 ) = (4/52)(4/52) = (1/13)^2 = 1/169

You do the button-pushing.
Statistics - Jacob, Tuesday, June 15, 2010 at 6:55pm
still questionable not understanding how to get the problem with the correct answer
Statistics - Reiny, Tuesday, June 15, 2010 at 7:26pm
1/169 = .005917

which according to the nearest thousandth is
006

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